X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=md5c.c;h=11a61516e2e335d201dfb4291dde1d2e88b2ab09;hb=b3e0cd2d558b5ccf06c816eed38c883d7462d3d4;hp=22ce9dee3e3e281549fd392c114c08caa3fa0abc;hpb=19d9e9bcd3f2afa2df1bbf6534b88197c3521e07;p=~andy%2Ffetchmail

diff --git a/md5c.c b/md5c.c
index 22ce9dee..11a61516 100644
--- a/md5c.c
+++ b/md5c.c
@@ -15,21 +15,24 @@
  * will fill a supplied 16-byte array with the digest.
  */
 
-/* This code slightly modified to fit into Samba by 
-   abartlet@samba.org Jun 2001 */
+#include "config.h"
+#include "fm_md5.h"
+#ifdef HAVE_STRING_H
+#include <string.h>   /* memmove */
+#endif
 
-#include "md5.h"
+#include <inttypes.h>
 
 /*
  * Note: this code is harmless on little-endian machines.
  */
 static void byteReverse(unsigned char *buf, unsigned longs)
 {
-    uint32 t;
+    uint32_t t;
     do {
-	t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+	t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
 	    ((unsigned) buf[1] << 8 | buf[0]);
-	*(uint32 *) buf = t;
+	*(uint32_t *) buf = t;
 	buf += 4;
     } while (--longs);
 }
@@ -53,14 +56,15 @@ void MD5Init(struct MD5Context *ctx)
  * Update context to reflect the concatenation of another buffer full
  * of bytes.
  */
-void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
+void MD5Update(struct MD5Context *ctx, const void *buf_, unsigned len)
 {
-    register uint32 t;
+    const unsigned char *buf = (const unsigned char *)buf_;
+    register uint32_t t;
 
     /* Update bitcount */
 
     t = ctx->bits[0];
-    if ((ctx->bits[0] = t + ((uint32) len << 3)) < t)
+    if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
 	ctx->bits[1]++;		/* Carry from low to high */
     ctx->bits[1] += len >> 29;
 
@@ -69,7 +73,7 @@ void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
     /* Handle any leading odd-sized chunks */
 
     if (t) {
-	unsigned char *p = (unsigned char *) ctx->in + t;
+	unsigned char *p = (unsigned char *) ctx->u.in + t;
 
 	t = 64 - t;
 	if (len < t) {
@@ -77,31 +81,31 @@ void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
 	    return;
 	}
 	memmove(p, buf, t);
-	byteReverse(ctx->in, 16);
-	MD5Transform(ctx->buf, (uint32 *) ctx->in);
+	byteReverse(ctx->u.in, 16);
+	MD5Transform(ctx->buf, ctx->u.in32);
 	buf += t;
 	len -= t;
     }
     /* Process data in 64-byte chunks */
 
     while (len >= 64) {
-	memmove(ctx->in, buf, 64);
-	byteReverse(ctx->in, 16);
-	MD5Transform(ctx->buf, (uint32 *) ctx->in);
+	memmove(ctx->u.in, buf, 64);
+	byteReverse(ctx->u.in, 16);
+	MD5Transform(ctx->buf, ctx->u.in32);
 	buf += 64;
 	len -= 64;
     }
 
     /* Handle any remaining bytes of data. */
 
-    memmove(ctx->in, buf, len);
+    memmove(ctx->u.in, buf, len);
 }
 
 /*
  * Final wrapup - pad to 64-byte boundary with the bit pattern 
  * 1 0* (64-bit count of bits processed, MSB-first)
  */
-void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
+void MD5Final(void *digest, struct MD5Context *ctx)
 {
     unsigned int count;
     unsigned char *p;
@@ -111,7 +115,7 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
 
     /* Set the first char of padding to 0x80.  This is safe since there is
        always at least one byte free */
-    p = ctx->in + count;
+    p = ctx->u.in + count;
     *p++ = 0x80;
 
     /* Bytes of padding needed to make 64 bytes */
@@ -121,25 +125,25 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
     if (count < 8) {
 	/* Two lots of padding:  Pad the first block to 64 bytes */
 	memset(p, 0, count);
-	byteReverse(ctx->in, 16);
-	MD5Transform(ctx->buf, (uint32 *) ctx->in);
+	byteReverse(ctx->u.in, 16);
+	MD5Transform(ctx->buf, ctx->u.in32);
 
 	/* Now fill the next block with 56 bytes */
-	memset(ctx->in, 0, 56);
+	memset(ctx->u.in, 0, 56);
     } else {
 	/* Pad block to 56 bytes */
 	memset(p, 0, count - 8);
     }
-    byteReverse(ctx->in, 14);
+    byteReverse(ctx->u.in, 14);
 
     /* Append length in bits and transform */
-    ((uint32 *) ctx->in)[14] = ctx->bits[0];
-    ((uint32 *) ctx->in)[15] = ctx->bits[1];
+    ctx->u.in32[14] = ctx->bits[0];
+    ctx->u.in32[15] = ctx->bits[1];
 
-    MD5Transform(ctx->buf, (uint32 *) ctx->in);
+    MD5Transform(ctx->buf, ctx->u.in32);
     byteReverse((unsigned char *) ctx->buf, 4);
     memmove(digest, ctx->buf, 16);
-    memset(ctx, 0, sizeof(ctx));	/* In case it's sensitive */
+    memset(ctx, 0, sizeof(*ctx));	/* In case it's sensitive */
 }
 
 /* The four core functions - F1 is optimized somewhat */
@@ -159,9 +163,9 @@ void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
  * reflect the addition of 16 longwords of new data.  MD5Update blocks
  * the data and converts bytes into longwords for this routine.
  */
-void MD5Transform(uint32 buf[4], uint32 const in[16])
+void MD5Transform(uint32_t buf[4], uint32_t const in[16])
 {
-    register uint32 a, b, c, d;
+    register uint32_t a, b, c, d;
 
     a = buf[0];
     b = buf[1];